DocumentCode
2045561
Title
Parallel algorithms for the longest common subsequence problem
Author
Babu, K. Nandan ; Saxena, Sanjeev
Author_Institution
Dept. of Comput. Sci. & Eng., Indian Inst. of Technol., Kanpur, India
fYear
1997
fDate
18-21 Dec 1997
Firstpage
120
Lastpage
125
Abstract
The longest common subsequence problem is to find a substring that is common to two given strings and is at least as long as any other such string. If m and n are the lengths of the two strings (m<2), we obtain O(log m) time parallel algorithm with mn processors and an O(log 2 n) time optimal parallel algorithm. Serial complexity on the decision tree model is Θ(mn)
Keywords
computational complexity; graph theory; parallel algorithms; string matching; CRCW model; decision tree model; grid directed acyclic graph; longest common subsequence problem; parallel algorithms; serial complexity; substring; time optimal parallel algorithm; Computer science; Costs; Data compression; Data engineering; Decision trees; Parallel algorithms; Pattern recognition;
fLanguage
English
Publisher
ieee
Conference_Titel
High-Performance Computing, 1997. Proceedings. Fourth International Conference on
Conference_Location
Bangalore
Print_ISBN
0-8186-8067-9
Type
conf
DOI
10.1109/HIPC.1997.634481
Filename
634481
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